<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
    <%@ taglib prefix="c" uri="http://java.sun.com/jstl/core_rt"%>
 <%
 String classPath = request.getContextPath();
 
 %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
	<form action="${classPath }/s3h3/hello.do?method=say" method="post">
		请输入：<input name="hello" type="text" value="${hello }"> <input type="submit" value="提交">
		
		<br>
		<c:if test="${not empty hello }">
		输入了：${hello }
		</c:if>
	</form>
</body>
</html>